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Science, 4th 9 weeks
Science, 4th 9 weeks

... 6. WCE.SC.22: Research and communicate how gravity is a force effecting celestial bodies throughout our solar system. ...
8.1 Touring the Night Sky Pg. 308 #1
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... that planets like Jupiter and Saturn are often called gas giants because they are mostly made of gas, like stars. The only thing keeping them from actually being stars is their mass. If Jupiter was 80x bigger, then it could be classified as a star. Another similarity between the two is that stars ac ...
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Document

... 8. What is an AU? (p. 478) Which planets would be less than 1 AU from the sun? More than 1 AU from the sun? How long does sunlight take to reach the Earth? 9. What is a comet? (p. 500) Where is the asteroid belt? (pg. 502) 10. What is the difference between a meteor, meteoroid and meteorite? P.503 ...
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b 03 Other Obj in Sol System combo ppt

... • rich in minerals (like planetary moons) • largest asteroid is only about 100 km in diameter • about 91 Apollo asteroids have been identified – potential for colliding with Earth (theory for extinction of the dinosaurs) • called minor planets or planetoids • rocky leftover mass of the inner planets ...
Science 9 Test Review-Space Answers 1. pg 434 2a
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... Artificial Satellites - put there by humans g. What is a comet? How long does it take for Halley’s Comet to make one revolution? A comet is a chunk of frozen matter that travels in an orbit around the sun. It takes Halley ’s Comet 76 years. h. Briefly describe a probe? Why are probes sent to other p ...
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There are numerous other ways in which human civilization could

... In 1996 there was a report that structures found in those meteorites appeared to be fossils of organisms. (picture on next slide) However subsequent work has shown that these structures are probably the result of nonorganic crystallization processes. ...
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Chapter 13 Lesson 3 Notes

... The planets are divided into four ___________________ planets and four ___________________ planets. The planets are separated by a huge ___________________ ___________________ between Mars and ___________________. The asteroid ___________________ is a ring shaped area where many small, rocky bodies ...
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Beyond our Sol. System
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... The Universe was once confined to a point of matter that was very massive, very dense, and very hot. This is before space and time existed. It is believed that there was an explosion so big that all of the matter in the Universe today was created in that explosion. Just like after any explosion, mat ...
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...  Earth is the fourth largest planet in the solar system. Earth is a planet composed of rock and supports life. MOONS  Satellites are celestial bodies that travel around a planet or dwarf planet in a closed path called an orbit. The moon is an example of a satellite.  Not all planets have moons, b ...
Astronomy Quiz 2
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... objects moving away from Earth shift toward the red end of the spectrum. This wave concept is known as what? a. Reflection of light c. Refraction of light b. Kepler’s empirical laws d. The Doppler effect 7. Which theory do many astronomers believe explains that the universe began with a period of ex ...
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... • Dark Matter: Scientists noted while observing the Andromeda galaxy that the stars orbit the centre of the gravity much faster than predicted by the galaxy’s mass. 90% of the galaxy’s mass comes from something that emits no light. ...
Variability of the Sun and Its Terrestrial Impact (VarSITI)
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... • In 1801 Herschel reported to the Royal Society that five prolonged periods of few sunspots correlated with high wheat prices in England. • Herschel inferred that less number of sunspots indicated less heat and light from the Sun so the wheat production was low and the wheat was costly • Herschel w ...
Astronomy Vocabulary File
Astronomy Vocabulary File

... Astronomical unit (AU)—the average age distance between the Earth and the sun, or approximately 150,000,000 km Terrestrial planets—the small, dense, rocky planets of the inner solar system Prograde rotation—the counter-clockwise spin of a planet or moon as seen from above the planet’s North Pole Ret ...
Space Flight to the Stars - Laureate International College
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...  One light-year (ly) equals the distance that a beam of light can travel through space in 1 year. It is equivalent to 63 000 AU or 9000 billion km.  At the speed of light, you could travel around Earth seven times in 1 s. A trip from the Sun to Neptune at the speed of light takes about 5 h. ...
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... •At about t = 1 second, temperature fell below 6 X 109 K, electrons and positions annihilated to form low energy gammaray photons that can not reverse the process •As a result, matter and anti-matter content decreased, and radiation content increased •From 1 second to 380,000 years, the universe is ...
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... dust that is a “tail” Scientists believe that these originate from a large region filled with comet cores called the Oort cloud. ...
Planetarium Field Guide 2015-2016 Third Grade
Planetarium Field Guide 2015-2016 Third Grade

... How are the inner planets different than the outer planets? Program: “Nine Planets and Counting” The program takes students on a tour to explore the many objects that populate our solar system. The students will be able to examine each individual planet and move outside to see where the Earth fits i ...
Welcome to the planetarium
Welcome to the planetarium

... stars and analyze the atmosphere of several ...
Benchmark One Study Guide: Science Benchmark Wed
Benchmark One Study Guide: Science Benchmark Wed

... 4. What unit of measurement do we use to measure distance within the Milky Way Galaxy? ____________________________ What unit of measurement do we use to measure within our solar system? _____________________________ 5. Identify each type of galaxy below. ...
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Panspermia



Panspermia (from Greek πᾶν (pan), meaning ""all"", and σπέρμα (sperma), meaning ""seed"") is the hypothesis that life exists throughout the Universe, distributed by meteoroids, asteroids, comets, planetoids and, also, by spacecraft in the form of unintended contamination by microorganisms.Panspermia is a hypothesis proposing that microscopic life forms that can survive the effects of space, such as extremophiles, become trapped in debris that is ejected into space after collisions between planets and small Solar System bodies that harbor life. Some organisms may travel dormant for an extended amount of time before colliding randomly with other planets or intermingling with protoplanetary disks. If met with ideal conditions on a new planet's surfaces, the organisms become active and the process of evolution begins. Panspermia is not meant to address how life began, just the method that may cause its distribution in the Universe.Pseudo-panspermia (sometimes called ""soft panspermia"" or ""molecular panspermia"") argues that the pre-biotic organic building blocks of life originated in space and were incorporated in the solar nebula from which the planets condensed and were further —and continuously— distributed to planetary surfaces where life then emerged (abiogenesis). From the early 1970s it was becoming evident that interstellar dust consisted of a large component of organic molecules. Interstellar molecules are formed by chemical reactions within very sparse interstellar or circumstellar clouds of dust and gas. The dust plays a critical role of shielding the molecules from the ionizing effect of ultraviolet radiation emitted by stars.Several simulations in laboratories and in low Earth orbit suggest that ejection, entry and impact is survivable for some simple organisms.
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